一、单项填空（共15小题；每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
1. Try to smile more, for a smile costs_______ ,but gives so much.
A. something B. anything C. nothing D. everything
2. Shy people usually prefer to chat_______ the phone rather than have a face-to-face communication.
A．by B．in C．beyond D．on
3. - Wow, you look so great in your new dress.
- Thanks! I_______ it when it was on sale.
A. have bought B. bought C. had bought D. buy
4. Would you please take the magazines off the little table to make_______ for my iPad?
A. room B. area C. field D. land
